Mecysmaucheniidae is a family of araneomorph spiders first described by Eugène Simon in 1895. Most genera occur in South America (Chile and Argentina), with two genera endemic to New Zealand. Genera , the World Spider Catalog accepts the following genera: Aotearoa Forster & Platnick, 1984 – New Zealand Chilarchaea Forster & Platnick, 1984 – Chile, Argentina Mecysmauchenioides Forster & Platnick, 1984 – Chile, Argentina Mecysmauchenius Simon, 1884 – Chile, Argentina Mesarchaea Forster & Platnick, 1984 – Chile Semysmauchenius Forster & Platnick, 1984 – Chile Zearchaea Wilton, 1946 – New Zealand See also List of Mecysmaucheniidae species References Further reading </ref> Araneomorphae families